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Is it necessary that all black coloured ...

Is it necessary that all black coloured objects should be considered black bodies ?

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Assertion : All black coloured objects are considered black bodies. Reason : Black colour is a good absorber of heat

A black body emits

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A black body does not .

SL ARORA-Thermal Properties of Matter-Exercise
  1. when a piece of red glass heated in a furnace is taken out, it glows w...

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  2. Two stars radiate maximum energy at wavelength 3.6 xx 10^(-7)m and 4.8...

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  3. Is it necessary that all black coloured objects should be considered b...

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  4. Why are clear nights colder than cloudy nights ?

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  5. White clothes are more comfortable in summer while coloured clothes ar...

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  6. Wien's displacement law fails for

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  7. In what respect, the thermal radiations are different from light radia...

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  8. What is critical temperature?

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  9. Assertion : A gas can be liquified at any temperature by increase of ...

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  10. What happens if water vapour at a pressure of 0.003 atmosphere is cool...

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  11. Water exists in liquid phase at 30^@C at 1 atmospheric pressure. How w...

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  12. The ice at 0^(@)C is converted into steam at 100^(@)C . State the isot...

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  13. Statement-1: Water is considered unsuitable for use in thermometers. ...

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  14. Two large holes are cut in a metal sheet. If this is heated, will thei...

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  15. There are two sphers of same radius and material at the same temperatu...

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  16. There are two sphers of same radius and material at the same temperatu...

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  17. Two bodies of specific heats C(1)andC(2) having same heat capacities ...

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  18. Two rods A and B are of equal length. Each rod has the ends at temp T(...

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  19. Two vessels of different materials are identical in size and wall-thic...

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  20. Two vessels A and B of different materials but having identical shape,...

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